Sight-feed lubricator.



No. 783,718. PATENTED FEB. 28, 1905. W. E. BRYANT, R. DAVIDSON & G. M. WOLGOTT.

SIGHT FEED LUBRIOATOR.

APPLIOATION FILED AUG. a, 1904.

8 SHEETS-SHBET 1.

lll

I I I +14 f l 3 2/ imgflktrs gy m. .7/

No. 788,718. PATENTED FEB. 28, 19054. W. E. BRYANT, R. DAVIDSON & G. M. WOLGOTT.

SIGHT FEED LUBRIGATOB.

APPLICATION FILED AUG. 4. 1904.

3 SHEETS-SHEET 2.

fifl'itursms No. 783,718. PATENTED FEB. 28, 1905. W. E. BRYANT, E. DAVIDSON & G. M. WOLGOTT.

SIGHT FEED LUBRIGATOR.

APPLICATION rmm 11116.4, 1904.

a snnms snm a.

QEEEW a ga uncutnrs E. 2% M1 m. MM"

cfdiitunssns 64% 7%3318' Patented. lienruary 28, 190%,

rrn Srarns PATENT M tch,

WILLIAM E. BRYANT, ROBERT DAVIDSON, AND GEORGE M. W'OLCOTT, OF DETROIT, MICHIGAN, ASSIGNORS TO MICHIGAN LUBE] C kTOlt COMPANY, OF DETROIT, MICHIGAN, A CORPORATION.

SlGHT FEEU LUBWICATOW.

SPECIFICATION forming part of Letters Patent No. 783,718, dated February 28, 1905.

Application filed August 4, 1904. Serial No. 219,475.

To whom it 71 (imwlflm Figure 1 is a vertical longitudinal section Be it known that we, W ILLIAu E. BRYANT, through a lubricator embodying our inven- ROBERT DAvIDsoN, and GEoneuNLVVoLco'rir, tion. Fig. 2 is a vertical section on line 2 2 citizens of the United States, residing at Deof Fig. 1. Fig. 3 is a horizontal section as 5 troit, in the county of Wayne, State of Michion line 3 3 ofl ig. 1. Fig. at is a similar secgan, have invented certain new and useful Imtion as on line 4: at of Fig. 1. provements in Sight-Feed Lubricators; and Referring to the characters of reference, 1 we do declare the following to be a full, clear, designates the body of the lubricator, within 55 and exact description of the invention, such which is located the oil-reservoir Q. Mounted I as will enable others skilled in the art to which upon the top of the body are the sight-feed it appertains to make and use the same, rci'erfeatures, which ccunprise the outside stems 3 once being had to the accompanying drawings, and the middle stem 5, formed integral with and to the iigures of reference marked there said body and having therein the cylindrical on, which form a part of this specification. sight-chanibers t, through which the passage 5 This invention relates to condensation-dis of the oil to the parts to be lubricated may placement sight-feed locomotive-1nbricators be observed. The upper ends of said stems of the balanced type; and it consists in the above thesight-clnunbers are hollow,as shown construction and arrangement of parts here at 6, and leading from said hollow portions 5 inafter fully set forth, and pointed out parare the oil-discharge ports 7, which pass ticularly in the claims. through the feed-arms 8, to which the tallow- The object of the invention is to produce a pipes 9 are connected. lubrieator of the character described wherein The condenser 10 is mounted upon the centhe arrangement is such as to provide a calitral stem 5 and has communication at 11 with 7 duct or heating-chamber at the top of the l'esthe steam supply pipe. Passing vertically 5 ervoir through the presence of which theluthrough the condenser is a standpipe 12, bricant may be maintained in a state of fluidity whose upper end terminates in the steam-pipe, in climates Where the lubricator is subjected whereby a supply of d rysteam is at all times to an extremely low temperature, at the same afforded. Communicating with the lower end 7 5 time providing in connection with said heatof said stand-pipe is a passage-way 13, which 3 ing-chamberinterior equalizing passage-ways extends downwardly through the stem 5 and within the parts of the lnbricator, whereby communicates at its lower end with the calithe balancing of the lubricator may be efduct or stcamchamber 1a, formed in the top fected and provision made for the passage of of the reservoir, by which means a supply of 80 steam through said chamber and out the oillive steam is at all times present in said chamdischarge ports to the several tallowmipes ber, atli'ording suliicient heat at the top of the which lead to the steam-chests of the cylinreservoir to keep the oil which passes thereders and to the pump of the air-brake system, from through the several sightfeed features obviating theplacingof equalizing-tubes upon in a high state of fluidity even in extremely 5 the exterior of the reservoir, as commonly cold weather. in order to prevent the accu- 4- practiced, and overcoming the necessity of mnlation of waterof condensation insaid caliusing many fittings and parts commonly emduct or steam -cha1nber, provision must be ployed, producing alubricator which has few made for maintaining a llow of steam thereexterior connections and which is simple and through, which result is accomplished and the 9 compact. equalization of the lubricator at the same time The above object is attained by the structure effected by means of steam-passages 15, ex-

illustratcd in the accompanying drawings, in tending vertically through the stems of the which sight-feed features and connnunicating with.

the oildischar 'e )orts 7, whereby a flow of steam through said chamber is maintained and very materially reducing the cost of manu- 1 facture and presenting a compact lubricator the lubricator is balanced by reason of the fact that through the medium of said ste'amequalizing passages boiler-pressure is present within the sight-feed chambers 4: to balance the pressure which is present in the body of the cup through the connection of the reservoir with the condenser by way of the passage 16, which extends downwardly through the middle stem 5 and the tube 17, communicating with the lower end of said passage and depending within said reservoir through which the water of condensation from the condenser is directed to the bottom of said reservoir, the flow of said water from said condenser being controlled by the valve 18. The oil flows from the reservoir to the several sight-feed chambers through the oil-ducts 19, which pass upwardly from the reservoir through the stems of the sight-feed features, the flow of oil therethrough being controlled by the valve 20.

Communicating with the upper end of each of the oil-ducts 19 is an oil-feed nozzle 21, which extends within the sight-chamber and from which oil ascends in drops to the oildischarge port 7 through the water which fills said chamber, as is common in the art. The flow of the oil is rendered visible by means of the opposed glasses 22, which are located in the opposite ends of the sightchambers 4 and are confined within a sleeve 23, which screws into the ends of said chamber and carries the washers 24 and 25, between which the glasses are confined.

Seated within the enlarged outer end of each of the oil-feed arms 8 is a plug 26, having an aperture 27 therethrough within the upper arc thereof. The plane of this aperture is above the bottom side of the tallow-pipe 9, so that the flow of steam through said tallowpipe is prevented from drawing the water through the oil-port T and from between the glasses in the sight-chambers. Also communicating with the sight-chamber is a drainduct 28, controlled by a valve 29, having an aperture 30 extending th erethrough, whereby the water may be drained from the sightchamber when desired.

By means of the arrangement herein shown and described a constant flow of steam is maintained through the stand-pipe 12 and caliduct or chamber 14, thence by way of the equalizing-passages 15 through the oil-discharge ports 7, and thence through the tallow-pipes to the parts to be lubricated. This flow of live steam not only heats the lubricant at the top of the reservoir, but as well maintains a circulation which assists materially in carrying the oil freely through the tallow-pipes to the points of use, at the same time perfectly balancing the lubricator and obviating the use of exterior equalizing-tubes and all of the connecting parts incident to their employment,

wherein the detachable parts and exterior ittings are materially lessened.

Having thus fully set forth our invention, what we claim as new, and desire to secure by Letters Patent, is

1. A lubricator comprising an oil-reservoir, a condenser, there being an oil-discharge passage leading from the reservoir, there being a steam-heating chamber in the reservoir, and there being an independent equalizing-passage connecting said chamber with the oil-discharge passage.

2. A lubricator comprising a condenser and oil-reservoir, there being an oil-discharge passage leading from the reservoir, said reservoir being provided with a steam-chamber through the medium of which the lubricant may be heated, a sight-feed feature in the oil-discharge passage, there being an equalizing-passage connecting said chamber with the oil-discharge passage above said sight-feed feature, and there being communication between the source of steam-supply and said steam-chamber.

3. A lubricator comprising a reservoir, a condenser,said reservoir having a steam-chamber communicating with the source of steamsupply, a plurality of sight-feed features,there being an oil-feed passage for each sight-feed feature leading from the reservoir through the sight-chambers of said sight-feed features, and there being an equalizing-passage for each oildischarge passage, each equalizing passage leading from said steamchamber and communicating with its respective oil-discharge passage, and there being a condensation-passage connecting the condenser with the bottom of the reservoir.

4. A lubricator comprising a condenser, an oil-reservoir, a plurality of sight-feed features mounted upon the reservoir and communicating therewith, oil-discharge passages also communicating with said sight-feed features, the oil-reservoir having a steam-caliduct, there being through each of the sight-feed features an equalizing-passage connecting said caliduct with the oil-discharge port, there being a steam-passage through one of the sight-feed features connecting the steam-space of the condenser with said caliduct.

5. A lubricator comprising a condenser, an oil-reservoir, a steam-chamber for said reservoir, sight-feed features mounted upon the reservoir, each having a sight-chamber communicating therewith, there being an oil-discharge passage leading from each chamber, there being a steam-passage connecting said steam-chamber with the steam-space of the condenser, and there being an interior equalizing-passage connecting said steam-chamber independently with each of the oil-discharge passages.

6. A lubricator comprising a condenser, an

oil-reservoir, said reservoir having a stearnchamber in the top of the reservoir to said heating chamber in the top thereof, a slght- 011-discharge passage.

'leed feature mounted on the top of the reser- In testimony whereof We sign this specificavoir above said chamber, there being a direct tion in the presence of two Witnesses.

5 passage for the oil from the reservoir through W ILLIAM E. BRYANTIY. the sight-chamber in said sight-feed feature, ROBERT DAVIDSON. there being an oil-discharge passage-Way c01n- GEORGE M. \VOLCOTT. municating With said sight-chamber, and there \Vitnesses: being an equalizing passage-way Within the E. S. Wi-IEELER,

IO sight-feed feature leading" from said steaml. G. HOWL'IJTT. 

